An epitope associates with which part of an antibody?
A) the disulfide bridge
B) the heavy-chain constant regions only
C) variable regions of a heavy chain and light chain combined
D) the light-chain constant regions only
E) the tail

Question

Quizplus · Accepted Answer

An epitope, also known as an antigenic determinant, is the specific region of an antigen that interacts with the variable regions of both the heavy and light chains of an antibody. Therefore, the best choice is C, which represents the variable regions of both heavy and light chains combined.

An Epitope Associates with Which Part of an Antibody